I believe most repair men and builders hang onto the book and DVDs for reference material. You'd be hard pressed to find any that want to sell, altho
they do come up on occasion. You might have a long wait, and when they do come up, they hold their value so you won't be saving a ton.
You'd be better served ordering them from Chris and get started reading and watching as soon as you can.
For the price, its a small drop in the bucket compared to what you'll spend getting started in cue repair or building.